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WIRE PROTECTOR FOR A MINIATURE CORONA DEVICE

IP.com Disclosure Number: IPCOM000026547D
Original Publication Date: 1992-Oct-31
Included in the Prior Art Database: 2004-Apr-06

Publishing Venue

Xerox Disclosure Journal

Abstract

A miniature corona device includes a coronode wire that is spaced about 0.1" from a receptor surface. This could cause major problems if the corner, or edge, of a sheet is caught and severed as the sheet passes through the transfer station. To remove this possible occurrence, a thin (approximately .003" dia.) monofilament line is wound periodically about the miniature corona unit. Most importantly, the monofilament should be as close to contact as possible to the coronode wire. It has been observed that this produces the least effect on charging. The 3 mil monofilament prevents a larger section of the coronode from producing corona. However, the 100 mils to the drum allow for ions to spread to these uncharged regions. Since transfer uniformity is considerably less stringent, this is an inexpensive and practical means for protecting sheets passing through the transfer zone of a copier or printer apparatus.